Parrots of the WorldForshaw, Joseph Michael
Covers all 356 species and well-differentiated subspecies of parrots. It features 146 superb color plates, as well as detailed, facing-page species ac... (more)

Trees of Eastern North AmericaNelson, Gil, et al.
Covering 825 species, more than any comparable field guide, this volume is the most comprehensive, best illustrated, and easiest to use book of its ki... (more)

Trees of Western North AmericaSpellenberg, Richard, et al.
Covering 630 species, this field guide presents all of the native and naturalized trees of the western US and Canada as far east as the Great Plains.... (more)

Wild and Garden Plants of IrelandNelson, Charles E. & Wendy Walsh
In this volume, the watercolors of botanical artist Wendy Walsh portray a personal selection of the plants that grow wild in Ireland or are cultivated... (more)

World's Rarest BirdsHirschfeld, Erik, et al.
Today, 571 bird species are classified as critically endangered or endangered, and a further four exist only in captivity. This landmark book features... (more)